is olevariant variable nil?

[Daniel Franzen]

hi :-)

How can I find out if an OleVariant is nil?

The compiler doesn't like this:

var
anolevariant : olevariant;
begin
if anolevariant = nil then
showmessage('anolevariant is nil');

thanks

[Malibu Software]

I thingk this works,
if anolevariant = unassigned then
yadda yadda

Daniel Franzen <is9...@student.hk-r.se> wrote in message
news:37C452...@student.hk-r.se...

[Sean Weatherall]

Delphi Function VarIsEmpty(v : Variant) tests for UnAssigned (Empty - Not
value assigned)
and VarIsNull(v: variant) tests for Null
Both are in System.pas.

[Stoeckli Martin]

You can use the function
bEmpty := VarIsEmpty(<OleVariant>);
For freeing the variable you use
<OleVariant> := unassigned;